gecko-dev/config/recurse.mk
Mike Hommey 6cf496014d Bug 1861509 - Don't try to build gkrust-gtest before gkrust. r=firefox-build-system-reviewers,ahochheiden
Back when this was added, there was an incentive to try to build
gkrust-gtest before gkrust so that libxul-gtest could have a chance
to link and be dumpsymbol'ed while gkrust compiles.

While we may still want that to happen to some degree, the way it's done
right now, with how things evolved over the years, ends up being
counterproductive and ends up delaying all the rust compiles entirely.

We'll deal with improving the overall ordering of builds in bug 1651293.

(This only affects CI)

Differential Revision: https://phabricator.services.mozilla.com/D192015
2023-10-27 00:09:06 +00:00

217 lines
7.8 KiB
Makefile

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this file,
# You can obtain one at http://mozilla.org/MPL/2.0/.
ifndef INCLUDED_RULES_MK
include $(topsrcdir)/config/rules.mk
endif
# The traditional model of directory traversal with make is as follows:
# make -C foo
# Entering foo
# make -C bar
# Entering foo/bar
# make -C baz
# Entering foo/baz
# make -C qux
# Entering qux
#
# Pseudo derecurse transforms the above into:
# make -C foo
# make -C foo/bar
# make -C foo/baz
# make -C qux
ifeq (.,$(DEPTH))
include root.mk
# Main rules (export, compile, libs and tools) call recurse_* rules.
# This wrapping is only really useful for build status.
$(RUNNABLE_TIERS)::
$(if $(filter $@,$(MAKECMDGOALS)),$(call BUILDSTATUS,TIERS $@),)
$(call BUILDSTATUS,TIER_START $@)
+$(MAKE) recurse_$@
$(call BUILDSTATUS,TIER_FINISH $@)
# Special rule that does install-manifests (cf. Makefile.in) + compile
binaries::
+$(MAKE) recurse_compile
# Get current tier and corresponding subtiers from the data in root.mk.
CURRENT_TIER := $(filter $(foreach tier,$(RUNNABLE_TIERS) $(non_default_tiers),recurse_$(tier) $(tier)-deps),$(MAKECMDGOALS))
ifneq (,$(filter-out 0 1,$(words $(CURRENT_TIER))))
$(error $(CURRENT_TIER) not supported on the same make command line)
endif
CURRENT_TIER := $(subst recurse_,,$(CURRENT_TIER:-deps=))
# The rules here are doing directory traversal, so we don't want further
# recursion to happen when running make -C subdir $tier. But some make files
# further call make -C something else, and sometimes expect recursion to
# happen in that case.
# Conveniently, every invocation of make increases MAKELEVEL, so only stop
# recursion from happening at current MAKELEVEL + 1.
ifdef CURRENT_TIER
ifeq (0,$(MAKELEVEL))
export NO_RECURSE_MAKELEVEL=1
else
export NO_RECURSE_MAKELEVEL=$(word $(MAKELEVEL),2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20)
endif
endif
RECURSE = $(if $(RECURSE_TRACE_ONLY),@echo $2/$1,$(call SUBMAKE,$1,$2))
# Use the $(*_dirs) variables available in root.mk
CURRENT_DIRS := $($(CURRENT_TIER)_dirs)
# Need a list of compile targets because we can't use pattern rules:
# https://savannah.gnu.org/bugs/index.php?42833
# Only recurse the paths starting with RECURSE_BASE_DIR when provided.
.PHONY: $(pre_compile_targets) $(compile_targets) $(syms_targets)
$(pre_compile_targets) $(compile_targets) $(syms_targets):
$(if $(filter $(RECURSE_BASE_DIR)%,$@),$(call RECURSE,$(@F),$(@D)))
$(syms_targets): %/syms: %/target
# Only hook symbols targets into the main compile graph in automation.
ifdef MOZ_AUTOMATION
ifeq (1,$(MOZ_AUTOMATION_BUILD_SYMBOLS))
recurse_compile: $(syms_targets)
endif
endif
# Create a separate rule that depends on every 'syms' target so that
# symbols can be dumped on demand locally.
.PHONY: recurse_syms
recurse_syms: $(syms_targets)
# The compile tier has different rules from other tiers.
ifneq ($(CURRENT_TIER),compile)
# Recursion rule for all directories traversed for all subtiers in the
# current tier.
$(addsuffix /$(CURRENT_TIER),$(CURRENT_DIRS)): %/$(CURRENT_TIER):
$(call RECURSE,$(CURRENT_TIER),$*)
.PHONY: $(addsuffix /$(CURRENT_TIER),$(CURRENT_DIRS))
# Dummy rules for possibly inexisting dependencies for the above tier targets
$(addsuffix /Makefile,$(CURRENT_DIRS)) $(addsuffix /backend.mk,$(CURRENT_DIRS)):
ifeq ($(CURRENT_TIER),export)
# At least build/export requires config/export for buildid, but who knows what
# else, so keep this global dependency to make config/export first for now.
$(addsuffix /$(CURRENT_TIER),$(filter-out config,$(CURRENT_DIRS))): config/$(CURRENT_TIER)
# The export tier requires nsinstall, which is built from config. So every
# subdirectory traversal needs to happen after building nsinstall in config, which
# is done with the config/host target. Note the config/host target only exists if
# nsinstall is actually built, which it is not on Windows, because we use
# nsinstall.py there.
ifdef COMPILE_ENVIRONMENT
ifneq (,$(filter config/host, $(compile_targets)))
$(addsuffix /$(CURRENT_TIER),$(CURRENT_DIRS)): config/host
endif
endif
endif
endif # ifeq ($(CURRENT_TIER),compile)
else
# Don't recurse if MAKELEVEL is NO_RECURSE_MAKELEVEL as defined above
ifeq ($(NO_RECURSE_MAKELEVEL),$(MAKELEVEL))
$(RUNNABLE_TIERS)::
else
#########################
# Tier traversal handling
#########################
define CREATE_SUBTIER_TRAVERSAL_RULE
.PHONY: $(1)
$(1):: $$(SUBMAKEFILES)
$$(LOOP_OVER_DIRS)
endef
$(foreach subtier,$(filter-out compile,$(RUNNABLE_TIERS)),$(eval $(call CREATE_SUBTIER_TRAVERSAL_RULE,$(subtier))))
ifndef TOPLEVEL_BUILD
ifdef COMPILE_ENVIRONMENT
compile::
@$(MAKE) -C $(DEPTH) compile RECURSE_BASE_DIR=$(relativesrcdir)/
endif # COMPILE_ENVIRONMENT
endif
endif # ifeq ($(NO_RECURSE_MAKELEVEL),$(MAKELEVEL))
endif # ifeq (.,$(DEPTH))
recurse:
@$(RECURSED_COMMAND)
$(LOOP_OVER_DIRS)
ifeq (.,$(DEPTH))
# This is required so that the pre-export tier sees the rules in
# mobile/android
ifeq ($(MOZ_WIDGET_TOOLKIT),android)
recurse_pre-export: mobile/android/pre-export
endif
# CSS2Properties.webidl needs ServoCSSPropList.py from layout/style
dom/bindings/export: layout/style/ServoCSSPropList.py
# Various telemetry histogram files need ServoCSSPropList.py from layout/style
toolkit/components/telemetry/export: layout/style/ServoCSSPropList.py
ifeq ($(TARGET_ENDIANNESS),big)
config/external/icu/data/target-objects: config/external/icu/data/$(MDDEPDIR)/icudt$(MOZ_ICU_VERSION)b.dat.stub
config/external/icu/data/$(MDDEPDIR)/icudt$(MOZ_ICU_VERSION)b.dat.stub: config/external/icu/icupkg/host
endif
ifdef ENABLE_CLANG_PLUGIN
# Only target rules use the clang plugin.
$(filter %/target %/target-objects,$(filter-out config/export config/host build/unix/stdc++compat/% build/clang-plugin/%,$(compile_targets))) security/rlbox/pre-compile media/libsoundtouch/src/pre-compile: build/clang-plugin/host build/clang-plugin/tests/target-objects
build/clang-plugin/tests/target-objects: build/clang-plugin/host
# clang-plugin tests require js-confdefs.h on js standalone builds and mozilla-config.h on
# other builds, because they are -include'd.
ifdef JS_STANDALONE
# The js/src/export target only exists when CURRENT_TIER is export. If we're in a later tier,
# we can assume js/src/export has happened anyways.
ifeq ($(CURRENT_TIER),export)
build/clang-plugin/tests/target-objects: js/src/export
endif
else
build/clang-plugin/tests/target-objects: mozilla-config.h
endif
endif
# Interdependencies that moz.build world don't know about yet for compilation.
# Note some others are hardcoded or "guessed" in recursivemake.py and emitter.py
ifdef MOZ_USING_WASM_SANDBOXING
dom/media/ogg/target-objects extensions/spellcheck/hunspell/glue/target-objects gfx/thebes/target-objects parser/expat/target-objects parser/htmlparser/target-objects gfx/ots/src/target-objects: security/rlbox/pre-compile
dom/media/target-objects dom/media/mediasink/target-objects: media/libsoundtouch/src/pre-compile
endif
# Most things are built during compile (target/host), but some things happen during export
# Those need to depend on config/export for system wrappers.
$(addprefix build/unix/stdc++compat/,target host) build/clang-plugin/host: config/export
# Rust targets, and export targets that run cbindgen need
# $topobjdir/.cargo/config to be preprocessed first. Ideally, we'd only set it
# as a dependency of the rust targets, but unfortunately, that pushes Make to
# execute them much later than we'd like them to be when the file doesn't exist
# prior to Make running. So we also set it as a dependency of pre-export, which
# ensures it exists before recursing the rust targets and the export targets
# that run cbindgen, tricking Make into keeping them early.
$(rust_targets): $(DEPTH)/.cargo/config
ifndef TEST_MOZBUILD
recurse_pre-export: $(DEPTH)/.cargo/config
endif
endif